refactor(Planning): 投资规划中心重构为 Redux 状态管理

- 新增 planningSlice 管理计划/复盘数据
- InvestmentPlanningCenter 改用 Redux 而非本地 state
- 列表和日历视图共享同一数据源，保持同步
- 优化 Mock handlers，改进事件 ID 生成和调试日志

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/mocks/handlers/account.js

@@ -351,15 +351,21 @@ export const accountHandlers = [
     const body = await request.json();
     console.log('[Mock] 创建投资计划:', body);
 
+    // 生成唯一 ID（使用时间戳避免冲突）
+    const newId = Date.now();
+
     const newPlan = {
-      id: mockInvestmentPlans.length + 301,
+      id: newId,
       user_id: currentUser.id,
       ...body,
+      // 确保 target_date 字段存在（兼容前端发送的 date 字段）
+      target_date: body.target_date || body.date,
       created_at: new Date().toISOString(),
       updated_at: new Date().toISOString()
     };
 
     mockInvestmentPlans.push(newPlan);
+    console.log('[Mock] 新增计划/复盘，当前总数:', mockInvestmentPlans.length);
 
     return HttpResponse.json({
       success: true,
@@ -488,13 +494,22 @@ export const accountHandlers = [
       });
     }
 
+    // 打印今天的事件（方便调试）
+    const today = new Date().toISOString().split('T')[0];
+    const todayEvents = filteredEvents.filter(e =>
+      (e.date === today || e.event_date === today)
+    );
+
     console.log('[Mock] 日历事件详情:', {
       currentUserId: currentUser.id,
       calendarEvents: calendarEvents.length,
       investmentPlansAsEvents: investmentPlansAsEvents.length,
       total: filteredEvents.length,
       plansCount: filteredEvents.filter(e => e.type === 'plan').length,
-      reviewsCount: filteredEvents.filter(e => e.type === 'review').length
+      reviewsCount: filteredEvents.filter(e => e.type === 'review').length,
+      today,
+      todayEventsCount: todayEvents.length,
+      todayEventTitles: todayEvents.map(e => `[${e.type}] ${e.title}`)
     });
 
     return HttpResponse.json({